[vdr] Re: Timing problem with dvdsubs and the xine plugin

[Reinhard Nissl <rnissl@gmx.de>]

Hi,

Stefan Norberg wrote:

> There's a timing problem with dvdsubs and the xine plugin.
> I suspect this is related to the fact that the xine plugin buffers the
> picture and sound while the subtitles are osd (not delayed). Maybe the
> dvd-plugin can be configured to delay the subtitle drawing so that it will
> work better with the xine-plugin?
Well the dvd plugin should use cDevice::GetSTC() to retrieve the PTS value of 
the current image painted on screen and use this value (plus a configureable 
offset) to schedule the subtitles (i. e. when to display them as OSD 
respectively when to hide them).

> Shouldn't the OSD-stuff be delayed along with the picture in general when it
> comes to the xine-plugin?
This is only possible if VDR's OSD API carries a PTS value which determines 
when to display the OSD. vdr-xine's OSD implementation tells xine a PTS value 
of 0 which means "immediately".

Another approach would be to create a cXineSpuDecoder which hands over SPU 
data to xine for further processing (e. g. scheduling at apropriate PTS). I'll 
check this soon. Maybe there will be a solution to this issue in vdr-xine-0.7.0.

Bye.
--
Dipl.-Inform. (FH) Reinhard Nissl
mailto:rnissl@gmx.de